package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;

import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;


@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //将页面提交的密码进行md5进行加密
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
        lqw.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(lqw);
        //如果没有查询到,返回登录失败
        if (emp == null) {
            return R.error("用户名不存在");
        }
        //比对密码   如果不一致,返回登录失败 密码不正确
        if (!emp.getPassword().equals(password)) {
            return R.error("密码不正确");
        }
        //查看员工状态  1:没有禁用  0:被禁用
        if (emp.getStatus() == 0) {
            return R.error("账号被禁用");
        }
        //登录成功,将员工id存入session中并返回登录成功
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);

    }

    /**
     * 员工退出
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清除session中保存的当前登录的员工id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工,员工信息:{}", employee.toString());
        //设置初始密码,MD5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());//创建时间
//        employee.setUpdateTime(LocalDateTime.now());//修改时间
//
//        //获取当前登录的id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);//创建人
//        employee.setUpdateUser(empId);//修改人

        employeeService.save(employee);
        return R.success("添加成功");
    }

    /**
     * 员工信息分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page={}", "pageSize={}", "name={}", page, pageSize, name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);

    }

    /**
     * 根据员工id修改员工信息
     *
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());
        long id = Thread.currentThread().getId();
        log.info("线程id为:{}",id);
//        Long empId = (Long) request.getSession().getAttribute("employee");//获取当前登录的id
//        employee.setUpdateTime(LocalDateTime.now());//当前修改时间
//        employee.setUpdateUser(empId);//当前修改人
        employeeService.updateById(employee);
        return R.success("修改成功");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        log.info("根据员工id查询信息");
        Employee employee = employeeService.getById(id);
        if (employee != null) {
            return R.success(employee);
        }
        return R.error("没有查询到员工信息");
    }


}
